Undertale Wiki Guide

Pacifist Walkthrough

This Walkthrough will take you through Undertale on a pacifist run. This way of playing is recommended by many fans and simply means going through the entire game without killing anyone. Doing so will also unlock a special ending and if you are hoping to achieve all the endings, it is recommended you complete this run first.

See also: Endings - You can watch all of Undertale's endings on this page.

Before the game starts a brief series of cut scenes will explain the history of the world you are about to enter. These scenes tell of a war between humans and monsters where monsters were forced to live in the Underground located beneath the Earth's surface. It will finish with images of a child falling into the deep hole which leads to the aforementioned world.

This child happens to be you, so give yourself a name and head out of the room to the right to begin your adventure. (on PC you use arrow keys, not WASD to move).